Solar activity forecast for the period June 5 - 11, 2015

Solar activity forecast for the period June 5 - 11, 2015

Activity level: mostly low
X-ray background flux (1.0-8.0 A): in the range B2.0-B8.5
Radio flux (10.7 cm): a fluctuation in the range 105-155 f.u.
Events: class C (0-12/day), class M (0-4/day), class X (0/period),
        proton (0/period)
Relative sunspot number (Ri): in the range 20-105

Jozef Lesko
RWC Prague, Astronomical Institute, Solar Dept., Ondrejov, Czech Republic
e-mail: sunwatch(at)asu.cas.cz
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Geomagnetic activity forecast for the period June 5 - 11, 2015

Next two days, we expect at the Budkov observaroty quiet conditions. May
6-7, quiet to unsettled conditions are probable.
The rest of forecasted week, we expect at most unsettled conditions with
less probable active period.

Tomas Bayer
Institute of Geophysics ASCR
Budkov Geomagnetic Observatory (BDV)
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Geomagnetic activity forecast for the period June 5 - July 1, 2015

Geomagnetic field will be:
quiet on June 13, 17 - 21, 28 - 30
mostly quiet on June 12, July 1
quiet to unsettled on June 5, 11, 22 - 25
quiet to active on June 6 - 9, 15 - 16, 26
active to disturbed on June 14, 27
disturbed on June 10

Amplifications of the solar wind are expected on June 12,
(16 - 17, 26,) 27 - 28).

Remark:
- Reliability of predictions remains more reduced than before.

F. K. Janda, OK1HH
Czech Propagation Interested Group
(OK1HH & OK1MGW, weekly forecasts since 1978)
e-mail: ok1hh(at)rsys.cz